CN103726222A - Isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton and preparation method thereof - Google Patents
Isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton and preparation method thereof Download PDFInfo
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- CN103726222A CN103726222A CN201310601409.4A CN201310601409A CN103726222A CN 103726222 A CN103726222 A CN 103726222A CN 201310601409 A CN201310601409 A CN 201310601409A CN 103726222 A CN103726222 A CN 103726222A
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Abstract
The invention discloses isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton and a preparation method thereof. The composite sound absorbing cotton is formed by a top face layer, a back face layer and a cellucotton layer arranged between the top face layer and the back face layer. The top face layer and the back face layer are made of a non-woven fabric material. The composite sound absorbing cotton is characterized in that the non-woven fabrics are prepared by the following raw materials by weight through a melt-blow method: 100 parts of isotactic polypropylene, 1-2 parts of tall oil acid, 8-10 parts of polybutadiene, 5-7 parts of solid paraffin, 1-2 parts of barium stearate, 2-3 parts of aluminium hydroxide, 14-17 parts of diethylene glycol dibenzoate, 1-2 parts of zinc borate, 12-14 parts of dry shells, 7-9 parts of basalt, 3-5 parts of apocynum venetum, 2-4 parts of white peony roots, 1-2 parts of bighead atractylodes rhizome and 4-5 parts of auxiliary. The isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton has the advantages of being high in tensile property, large in product void rate and good in breathability, and improves the sound absorbing effect of ordinary sound absorbing cotton.
Description
Technical field
The present invention relates to Nonwovens In Technology, be specifically related to a kind of isotactic polypropylene/tall oil acid/polybutadiene composite sound-absorbing cotton and preparation method thereof.
Background technology
Noise directly affects the raising of people's physical and mental health and quality of life, for a long time in noise circumstance, can cause that hearing loss even may bring out some diseases.Will be away from noise, what we can do is exactly sound-absorbing and sound insulation.Acoustical cotton, the high-frequency noises vibrational energy that produces in life can be converted to acoustical cotton inside fine count fiber kinetic energy and lead into heat energy and disappear, reach the function of absorbing sound and lowering noise.
Acoustical cotton can be superimposed with multi-layer nonwoven fabrics, or other material of arranging in pairs or groups, and makes sound-absorbing, acoustic material.Nonwoven fabric is that textile staple or long filament are carried out to orientation or random support row, forms fibre net structure, presents many tiny gaps, this gap can be regarded hole as, has adsorption function, therefore, acoustical cotton can be considered porous material, has good sound-absorbing, heat-insulation warm keeping performance.Acoustical cotton is widely used in the industries such as building, electrical equipment, automobile, machinery as a kind of gasket material, mainly play the effect of sound insulation.But all there is more deficiency in existing acoustical cotton product and manufacture method thereof, main manifestations is: not environmental protection of manufacture craft; Sound-absorbing effect is general; Chemical resistance is low, cannot meet Code in Hazardous Special Locations instructions for use; Temperature resistant grade is low; Do not carry out flame treatment; Product caking ability is inadequate, fugitive, tension intensity is poor; Outward appearance and flatness are inadequate, thickness relatively large deviation etc.
Summary of the invention
Object of the present invention is just to provide a kind of isotactic polypropylene/tall oil acid/polybutadiene composite sound-absorbing cotton and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of isotactic polypropylene/tall oil acid/polybutadiene composite sound-absorbing cotton, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopts nonwoven cloth material, nonwoven fabric described in it is characterized in that is made by meltblown by the raw material of following weight portion: isotactic polypropylene 100, tall oil acid 1-2, polybutadiene 8-10, solid paraffin 5-7, barium stearate 1-2, aluminium hydroxide 2-3, Diethylene Glycol Dibenzoate 14-17, Firebrake ZB 1-2, dry shell 12-14, basalt 7-9, bluish dogbane 3-5, root of herbaceous peony 2-4, bighead atractylodes rhizome 1-2, auxiliary agent 4-5.
Described auxiliary agent is made by following raw materials in part by weight: clay 10-12, nano-sized carbon 1-2, polytetrafluoroethylene powder 3-4, antioxidant NBC 1-2, isopropyl distearyl acyl-oxygen base Aluminate 2-3, zinc dialkyl dithiophosphate 2-3, magnetite 2-3, epoxidized soybean oil 35-40, n-propyl gallate 3-4, coix seed oil 2-3, vanadium diboride 1-2, Tea Polyphenols 2-3; Preparation method sends into clay, magnetite in calcining furnace and calcine 2-3 hour at 720-740 ℃, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, with clear water, cleans, and dries, grinds to form 400-600 order powder; Gained powder mixes with other residual components, is heated to 60-70 ℃, and stirring reaction 40-50 minute is cooling, grinds to form slurry, obtains.
The preparation method of described isotactic polypropylene/tall oil acid/polybutadiene composite sound-absorbing cotton, is characterized in that comprising the following steps:
(1), bluish dogbane, the root of herbaceous peony, the bighead atractylodes rhizome are merged and pulverize 220-250 order powder, then, to the powder air blast of gained, it is seethed, to spray form solid paraffin in the powder seething, the two is fully mixed;
(2), will be dried shell and send in retort, calcination processing 3-4 hour at 555-660 ℃, takes out, and is broken into powder with the basalt powder after calcination processing;
(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, stir;
(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven fabric.
The present invention has following beneficial effect: the present invention adopts meltblown to prepare nonwoven fabric, have that technique is simple, raw material green cheap and easy to get, controllability good, production efficiency is high, and industrializing implementation is strong, can guarantee stable and reliable product quality, the acoustical cotton making has that tensile property is high, product voidage is large, good permeability, has improved the sound-absorbing effect of common acoustical cotton.
The specific embodiment
Described a kind of isotactic polypropylene/tall oil acid/polybutadiene composite sound-absorbing cotton, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopts nonwoven cloth material, nonwoven fabric described in it is characterized in that is made by meltblown by the raw material of following weight portion: isotactic polypropylene 100, tall oil acid 1.5, polybutadiene 8.5, solid paraffin 6, barium stearate 2, aluminium hydroxide 3, Diethylene Glycol Dibenzoate 15.9, Firebrake ZB 2, dry shell 13, basalt 8, bluish dogbane 4, the root of herbaceous peony 3, the bighead atractylodes rhizome 1, auxiliary agent 5.
Described auxiliary agent by following weight portion (kilogram) raw material makes: clay 10, nano-sized carbon 1, polytetrafluoroethylene powder 3, antioxidant NBC 1, isopropyl distearyl acyl-oxygen base Aluminate 2, zinc dialkyl dithiophosphate 2, magnetite 3, epoxidized soybean oil 35, n-propyl gallate 3, coix seed oil 2, vanadium diboride 1, Tea Polyphenols 3; Preparation method sends into clay, magnetite in calcining furnace and calcine 2-3 hour at 720-740 ℃, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, with clear water, cleans, and dries, grinds to form 400-600 order powder; Gained powder mixes with other residual components, is heated to 60-70 ℃, and stirring reaction 40-50 minute is cooling, grinds to form slurry, obtains.
Preparation method comprises the following steps:
(1), bluish dogbane, the root of herbaceous peony, the bighead atractylodes rhizome are merged and pulverize 220-250 order powder, then, to the powder air blast of gained, it is seethed, to spray form solid paraffin in the powder seething, the two is fully mixed;
(2), will be dried shell and send in retort, calcination processing 3-4 hour at 555-660 ℃, takes out, and is broken into powder with the basalt powder after calcination processing;
(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, stir;
(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven fabric.
After tested, the distribution of fiber diameters of resulting materials is 1.6-1.9 μ m, and tearing strength is 547N/m, and oxygen index (OI) is 34%-47%, and noise reduction coefficient is 0.833-0.887.
Claims (2)
1. isotactic polypropylene/tall oil acid/polybutadiene composite sound-absorbing cotton, by top coat, back layer, and the cellucotton layer being clipped between top coat and back layer forms, described top coat, back layer adopts nonwoven cloth material, nonwoven fabric described in it is characterized in that is made by meltblown by the raw material of following weight portion: isotactic polypropylene 100, tall oil acid 1-2, polybutadiene 8-10, solid paraffin 5-7, barium stearate 1-2, aluminium hydroxide 2-3, Diethylene Glycol Dibenzoate 14-17, Firebrake ZB 1-2, dry shell 12-14, basalt 7-9, bluish dogbane 3-5, root of herbaceous peony 2-4, bighead atractylodes rhizome 1-2, auxiliary agent 4-5, described auxiliary agent is made by following raw materials in part by weight: clay 10-12, nano-sized carbon 1-2, polytetrafluoroethylene powder 3-4, antioxidant NBC 1-2, isopropyl distearyl acyl-oxygen base Aluminate 2-3, zinc dialkyl dithiophosphate 2-3, magnetite 2-3, epoxidized soybean oil 35-40, n-propyl gallate 3-4, coix seed oil 2-3, vanadium diboride 1-2, Tea Polyphenols 2-3, preparation method sends into clay, magnetite in calcining furnace and calcine 2-3 hour at 720-740 ℃, then, takes out, and sends in the hydrochloric acid solution of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, with clear water, cleans, and dries, grinds to form 400-600 order powder, gained powder mixes with other residual components, is heated to 60-70 ℃, and stirring reaction 40-50 minute is cooling, grinds to form slurry, obtains.
2. the preparation method of a kind of isotactic polypropylene/tall oil acid/polybutadiene composite sound-absorbing cotton according to claim 1, is characterized in that comprising the following steps:
(1), bluish dogbane, the root of herbaceous peony, the bighead atractylodes rhizome are merged and pulverize 220-250 order powder, then, to the powder air blast of gained, it is seethed, to spray form solid paraffin in the powder seething, the two is fully mixed;
(2), will be dried shell and send in retort, calcination processing 3-4 hour at 555-660 ℃, takes out, and is broken into powder with the basalt powder after calcination processing;
(3), isotactic polypropylene is heated to molten condition, add step (1), (2) material, stir;
(4), in step (3) material, add other residual components, fully stir, mix, by nozzle, spray and thread make nonwoven fabric.
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| CN201310601409.4A CN103726222A (en) | 2013-11-25 | 2013-11-25 | Isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton and preparation method thereof |
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Cited By (2)
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| CN105525440A (en) * | 2016-01-26 | 2016-04-27 | 芜湖环瑞汽车内饰件有限公司 | Flame-retardant and sound-absorption cotton and preparation method thereof |
| CN106567196A (en) * | 2016-11-01 | 2017-04-19 | 安徽依采妮纤维材料科技有限公司 | Heat-resistant and antibacterial modified non-woven fabric material |
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Application publication date: 20140416 |